git.gag.com Git - fw/altos/blob - altosdroid/src/org/altusmetrum/AltosDroid/AltosDroidTab.java

   1 /*
   2  * Copyright © 2013 Mike Beattie <mike@ethernal.org>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  16  */
  17
  18 package org.altusmetrum.AltosDroid;
  19
  20 import org.altusmetrum.altoslib_5.*;
  21 import android.location.Location;
  22 import android.app.Activity;
  23 import android.graphics.Color;
  24 import android.os.Bundle;
  25 import android.support.v4.app.Fragment;
  26 import android.support.v4.app.FragmentTransaction;
  27 import android.support.v4.app.FragmentManager;
  28 import android.location.Location;
  29 import android.util.Log;
  30
  31 public abstract class AltosDroidTab extends Fragment {
  32         AltosState              last_state;
  33         AltosGreatCircle        last_from_receiver;
  34         Location                last_receiver;
  35
  36         public abstract void show(AltosState state, AltosGreatCircle from_receiver, Location receiver);
  37
  38         public abstract String tab_name();
  39
  40         public void set_visible(boolean visible) {
  41                 FragmentTransaction     ft = AltosDroid.fm.beginTransaction();
  42                 if (visible)
  43                         ft.show(this);
  44                 else
  45                         ft.hide(this);
  46                 ft.commit();
  47         }
  48
  49         public void update_ui(AltosState state, AltosGreatCircle from_receiver, Location receiver, boolean is_current) {
  50                 if (is_current) {
  51                         Log.d(AltosDroid.TAG, String.format("%s: visible, performing update", tab_name()));
  52
  53                         show(state, from_receiver, receiver);
  54                 } else {
  55                         Log.d(AltosDroid.TAG, String.format("%s: not visible, skipping update", tab_name()));
  56                         last_state = state;
  57                         last_from_receiver = from_receiver;
  58                         last_receiver = receiver;
  59                         return;
  60                 }
  61         }
  62
  63         public void onHiddenChanged(boolean hidden) {
  64                 if (last_state != null && isVisible()) {
  65                         AltosState              state = last_state;
  66                         AltosGreatCircle        from_receiver = last_from_receiver;
  67                         Location                receiver = last_receiver;
  68
  69                         last_state = null;
  70                         last_from_receiver = null;
  71                         last_receiver = null;
  72                         show(state, from_receiver, receiver);
  73                 }
  74         }
  75 }